The Pulley,groove, cataloged under National Stock Number 3020-01-377-4242, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-377-4242 |
| Primary Part Number | 2C8-04141 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Lake Shore Systems, Inc. |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 4.500 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Radius | 0.188 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 15.000 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 0.720 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 2.493 INCHES NOMINAL IN |
| Material | PLASTIC OVERALL |
| Face Width | 4.500 INCHES NOMINAL IN |
| Groove Width | 1.000 INCHES NOMINAL IN |
| Lightening Hole | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2C8-04141 PRIMARY | Lake Shore Systems, Inc. (USA) |
| 2D3-03216 ITEM 2 | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2D3-03216 | D/9 Drawing number reference only Lake Shore Systems, Inc. |
NSN 3020-01-377-4242 is a Pulley,groove, manufactured by Lake Shore Systems, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-377-4242 has 2 manufacturer part numbers on file: 2C8-04141 (Lake Shore Systems, Inc.), 2D3-03216 ITEM 2 (Lake Shore Systems, Inc.).
Key specifications for 2C8-04141: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED; Bore Length: 4.500 INCHES NOMINAL IN. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.